US20110306229A1 - Connector assembly - Google Patents
Connector assembly Download PDFInfo
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- US20110306229A1 US20110306229A1 US13/158,831 US201113158831A US2011306229A1 US 20110306229 A1 US20110306229 A1 US 20110306229A1 US 201113158831 A US201113158831 A US 201113158831A US 2011306229 A1 US2011306229 A1 US 2011306229A1
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- United States
- Prior art keywords
- receptacle
- connector
- housing
- plug
- receptacle housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/005—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure requiring successive relative motions to complete the coupling, e.g. bayonet type
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2103/00—Two poles
Definitions
- a typical connector assembly includes a receptacle connector fixed to a printed circuit board and a plug connector received in the receptacle connector.
- the right angle connector assemblies are broadly divided into two types depending on the direction of insertion or removal of the plug connector to or from the receptacle connector.
- One of the two types is a horizontal insertion/removal type in which the plug connector is horizontally inserted into or removed from the receptacle connector.
- the other type is a vertical insertion/removal type (including insertion/removal in the direction which is not strictly vertical but from above or upward) in which the plug connector is vertically inserted into or removed from the receptacle connector.
- the vertical insertion/removal type may be more advantageous than the other one.
- the reason is as follows. Assembly is performed while the plug connector is generally connected to a cable. In the horizontal insertion/removal type, the cable connected to the plug connector horizontally extends therefrom. Accordingly, the plug connector has to be carefully inserted into or removed from the receptacle connector so that the cable does not contact other components on the printed circuit board. The vertical insertion/removal type is free from such care.
- FIG. 7A is a perspective view of a receptacle connector 10 and a plug connector 20 .
- the receptacle connector 10 includes a receptacle housing 11 , receptacle contacts 13 arranged at the back (relative to the left side of the figure indicating “front”) of the receptacle housing 11 , and metal fittings 14 arranged in front ends of both side walls of the receptacle housing 11 , the metal fittings being secured to the printed circuit board.
- the receptacle connector 10 further includes projections 12 , arranged in upper parts of both the side walls, for preventing removal of the plug connector 20 .
- the plug connector 20 includes a plug housing 21 and plug contacts (not illustrated) arranged in the plug housing 21 , the plug contacts being connected to cables 23 .
- the plug connector 20 has projection receiving portions 22 in upper parts of both side walls of the plug housing 21 , the projection receiving portions 22 being engaged with the projections 12 of the receptacle housing 11 .
- FIG. 7B illustrates the connector assembly after insertion of the plug connector 20 into the receptacle connector 10 from above.
- the plug contacts (not illustrated) mate with the receptacle contacts 13 to achieve electrical connection.
- the projections 12 of the receptacle housing 11 engage the projection receiving portions 22 of the plug connector 20 , thus preventing upward removal of the plug connector 20 .
- FIG. 7C is a side view of the connector assembly of FIG. 7B .
- the metal fitting 14 projecting from the receptacle housing 11 is secured to a printed circuit board 30 by soldering.
- the receptacle contact 13 projecting from the rear wall of the receptacle housing 11 is connected to a circuit pattern of the printed circuit board 30 by soldering.
- the right angle connector assemblies of the vertical insertion/removal type for mounting on a printed circuit board are widely used because such a connector assembly allows the profile of a device including the connector assembly to be reduced and the workability is excellent.
- the connector assemblies have a lock mechanism in which projections are arranged on outer walls of a plug housing, receiving portions are arranged on inner walls of a receptacle housing, and the projections engage the receiving portions to prevent removal of the plug connector even when an upward force acts on the connector assembly.
- connectors constituting a connector assembly mounted on a printed circuit board are unmated from each other after the completion of assembly of a product including the connector assembly.
- one connector is inserted into or removed from the other connector in order to undergo various tests before the assembly of the product.
- the above-described lock mechanism includes molded components of the housings of the connectors, a lock projection or receiving portion is worn away owing to the insertion and removal.
- the lock loosens and the connector may be easily removed from the other one.
- a connector assembly includes a plug connector including a plug housing and an engaging portion that outwardly protrudes from each of opposite first and second side-surfaces of the plug housing, and a receptacle connector that is mated with the plug connector, the receptacle connector including a receptacle housing that accommodates the plug connector, and a metal fitting that is formed at each of opposite first and second side walls of the receptacle housing, the metal fitting including a retaining portion that is formed at a lower part of the metal fitting and is exposed at a lower part of each of the first and second side walls of the receptacle housing, and a beam portion that is formed at an upper part of the metal fitting and inwardly projects from each of the first and second side walls of the receptacle housing at a height above a bottom surface of the receptacle housing, the beam portion forming a space with the bottom surface of the receptacle housing to receive the engaging portion of the plug connector.
- FIGS. 1A to 1C illustrate a connector assembly according to a first embodiment.
- FIG. 2 is a perspective view of the connector assembly according to the first embodiment when viewed from the rear.
- FIGS. 3A to 3D illustrate a method of inserting a plug connector into a receptacle connector according to the first embodiment.
- FIGS. 4A to 4D illustrate a method of withdrawing the plug connector into a receptacle connector according to the first embodiment.
- FIGS. 5A to 5C illustrate a connector assembly according to a second embodiment.
- FIGS. 6A to 6C illustrate a method of inserting a plug connector into a receptacle connector according to the second embodiment.
- FIGS. 7A to 7C illustrate an exemplary structure of a connector assembly of the vertical insertion/removal type according to a related art.
- a connector assembly according to a first embodiment is described with reference to FIGS. 1A to 4D .
- the connector assembly according to the first embodiment includes receptacle contacts of the right angle type and a plug connector of a vertical insertion/removal type.
- the plug connector is inserted from above into a receptacle connector and is mated thereto.
- surface mounting is performed.
- FIGS. 1A to 1C illustrate an exemplary structure of the connector assembly according to this embodiment in a manner similar to FIGS. 7A to 7C described above.
- the structure of the connector assembly is described mainly using FIGS. 1A to 1C .
- the structure is described with reference to FIG. 2 .
- FIG. 2 is a perspective view of the connector assembly of FIG. 1 when viewed from the rear.
- FIG. 1A is a perspective view of a receptacle connector 100 and a plug connector 200 .
- Right part of FIG. 1A illustrates the receptacle connector 100 including a receptacle housing 110 that is illustrated as being transparent.
- the receptacle connector 100 includes the receptacle housing 110 , the receptacle contacts, indicated at 130 , and metal fittings 140 .
- the receptacle housing 110 has a shape like a box with an open top and an open front.
- the receptacle housing 110 includes a bottom surface 111 and walls extending upward from three sides of the bottom surface 111 .
- a top opening of the receptacle housing 110 is for insertion and removal of the plug connector 200 .
- a front opening thereof is for extension of cables 240 connected to the plug connector 200 upon insertion of the plug connector 200 .
- the receptacle contacts 130 are arranged at the back of the receptacle housing 110 such that the receptacle contacts 130 rise upward and are electrically connected to plug contacts (not illustrated) in the plug connector 200 inserted from above.
- Lower part of each receptacle contact 130 projects from the outer surface of the rear wall, indicated at 113 , of the receptacle housing 110 and is joined to a circuit pattern of a printed circuit board 30 by soldering.
- FIG. 2 illustrates the receptacle contacts 130 projecting from the outer surface of the rear wall 113 of the receptacle housing 110 .
- FIG. 1A illustrates the two receptacle contacts 130 .
- the number of receptacle contacts is not limited to two. More receptacle contacts 130 may be arranged.
- a metal fitting 140 is inverted Z-shaped as illustrated in an enlarged view in right part of FIG. 1A .
- the metal fitting 140 is insert-molded in front parts each of both side walls, indicated at 112 , of the receptacle housing 110 .
- the metal fitting 140 includes a body portion 141 , a retaining portion 142 , and a beam portion 143 .
- the body portion 141 projects inwardly from the side wall 112 of the receptacle housing 110 and extends upwardly from a lower part of each of the side walls 112 of the receptacle housing 110 to an upper part of each of the side walls 112 of the receptacle housing 110 .
- the retaining portion 142 is formed at a lower part of the body portion 141 and extends horizontally from the body portion 141 to be exposed on the outside of the receptacle housing 110 .
- the retaining portion 142 forwardly projects from the receptacle housing 110 .
- the retaining portion 142 is secured to a printed circuit board 30 by soldering.
- the metal fitting 140 includes a beam portion 143 , serving as upper part of the body portion 141 thereof, projecting inwardly from the side wall 112 of the receptacle housing 110 and extending horizontally from the body portion 141 in a direction of a rear wall 113 of the receptacle housing 110 by a predetermined distance along each of the side walls 112 of the receptacle housing 110 at a predetermined height above a bottom surface 111 of the receptacle housing 110 .
- the beam portion 143 functions as a lock against upward movement of the plug connector 200 .
- FIG. 2 illustrates the beam portion 143 which projects inwardly from the receptacle housing 110 and horizontally extends along the side wall 112 .
- the metal fittings 140 are insert-molded in the receptacle housing 110 .
- a slit may be vertically formed in each side wall 112 and the metal fitting 140 may be pressed into the slit.
- the retaining portions 142 project from the front surface 114 of the receptacle housing 110 .
- the retaining portions 142 may be exposed at the front surface 114 or bottom surface 111 without projecting therefrom and the exposed surfaces of the retaining portions 142 may be joined to the printed circuit board 30 by soldering.
- the plug connector 200 includes a plug housing 210 , the cables 240 , and the plug contacts (not illustrated).
- the plug housing 210 has a front surface 216 , left and right side-surfaces 211 , a rear surface 213 , a top surface 212 and a bottom surface 215 .
- One end of each cable 240 is connected to the plug contact and the other end thereof extends from the front surface 216 of the plug housing 210 and is connected to, for example, a circuit module.
- the plug housing 210 includes raised portions 221 protruding from the respective side-surfaces 211 thereof.
- the top surface of each of the raised portions 221 is included in the top surface 212 of the plug housing 210 .
- the raised portions 221 are formed the side-surfaces 211 adjacent to the rear surface 213 of the plug housing 210 .
- a lower part of each of the raised portions 221 extends in the direction of the front surface 216 of the plug housing 210 to provide an engaging portion 220 .
- the engaging portion 220 has a predetermined height from the bottom surface 215 of the plug housing 210 .
- the engaging portion 220 is inserted into a space formed between the metal fitting 140 and the bottom surface 111 of the receptacle housing 110 . Namely the beam portion 143 forms a recess with the body portion 141 and the bottom surface 111 of the receptacle housing 110 .
- the engaging portion 220 is described in detail later.
- the plug housing 210 includes the top surface 212 having a catch 230 for withdrawing the plug connector 200 from the receptacle connector 100 .
- the plug housing 210 further includes a rear surface 213 that is formed in a curved surface (refer to FIG. 2 ).
- the plug housing 210 has two slits 214 extending from the rear surface 213 thereof to the bottom surface 215 thereof. The placement of the curved surface prevents the lower part of the rear surface 213 of the plug connector 200 from hitting the rear wall 113 of the receptacle housing 110 and being caught by the rear wall 113 upon insertion of the plug connector 200 into the receptacle connector 100 and upon removal of the plug connector 200 from the receptacle connector 100 .
- the slits 214 are configured to guide the receptacle contacts 130 into the plug housing 210 and mate the plug contacts (not illustrated) to the receptacle contacts 130 when the plug connector 200 is inserted into the receptacle connector 100 .
- FIGS. 1B and 1C depict a mated condition of the plug connector 200 and the receptacle connector 100 .
- the receptacle housing 110 is illustrated as being transparent.
- each engaging portion 220 of the plug connector 200 is received between the lower surface of the beam portion 143 of the corresponding metal fitting 140 and the bottom surface 111 of the receptacle housing 110 . Accordingly, even if an upward force acts on the plug connector 200 in the mated condition, the plug connector 200 is locked by the beam portion 143 .
- FIGS. 3A to 3D A method of mating the plug connector 200 to the receptacle connector 100 in this embodiment is described with reference to FIGS. 3A to 3D and a method of withdrawing the plug connector 200 from the receptacle connector 100 is described with reference to FIGS. 4A to 4D .
- the receptacle housing 110 is illustrated as being transparent so that mating the plug connector 200 to the receptacle connector 100 and unmating the plug connector 200 from the receptacle connector 100 can be seen.
- the method of mating the plug connector 200 to the receptacle connector 100 is first described. Referring to FIG. 3A , the plug connector 200 is positioned above the receptacle connector 100 mounted on the printed circuit board 30 . At this time, the direction in which the cables 240 connected to the plug connector 200 extend therefrom is aligned with the forward direction of the receptacle connector 100 (i.e., the left in FIG. 3A ).
- each engaging portion 220 of the plug connector 200 is diagonally inserted in an inclined state between the lower surface of the beam portion 143 of the metal fitting 140 and the bottom surface 111 of the receptacle housing 110 (see FIG. 3B ).
- the rear part of the top surface 212 of the plug connector 200 is downwardly pressed such that the plug connector 200 is pressed into the receptacle housing 110 along the rear wall 113 .
- Pressing the plug connector 200 allows the receptacle contacts 130 in the receptacle housing 110 to enter the plug housing 210 through the slits 214 of the plug housing 210 , so that the receptacle contacts 130 mate with the plug contacts (not illustrated).
- the plug connector 200 is pressed into the receptacle housing 110 until the plug connector 200 is horizontally received therein, the mating of the connectors (i.e., the plug connector 200 and the receptacle connector 100 ) is completed.
- FIG. 4A illustrates a state in which while the plug connector 200 is mated with the receptacle connector 100 , one end of a puller 250 is placed in the catch 230 on the top surface 212 of the plug connector 200 .
- the puller 250 is a plate-shaped tool having a tapered end and a width to fit within a recess, serving as the catch 230 .
- the puller 250 When the rear surface 213 of the plug housing 210 is pulled up to a predetermined level from the receptacle housing 110 (for example, a level of approximately two thirds of the height of the plug housing 210 ), the puller 250 is pressed upward to the right, so that each engaging portion 220 is disengaged from the metal fitting 140 (see FIG. 4C ).
- the receptacle housing 110 and the plug housing 210 are of, for example, liquid crystal polymer (LCP) and the metal fittings 140 are of, for example, stainless used steel (SUS) or copper alloy.
- the outer dimensions of the receptacle connector 100 are 4.5 mm (width) ⁇ 4.5 mm (depth) ⁇ 1.5 mm (height).
- the engaging portion 220 is disposed on each of the side surfaces 211 of the plug housing 210 and the engaging portion 220 is inserted between the metal fitting 140 and the bottom surface 111 of the receptacle housing 110 .
- two engaging portions i.e., a first engaging portion and a second engaging portion
- the first engaging portion is inserted between a metal fitting and the bottom surface of the receptacle housing and the second engaging portion is inserted between a receiving portion of the receptacle housing and the bottom surface of the receptacle housing.
- the second embodiment is described with reference to FIGS. 5A to 6C .
- FIGS. 5A to 5C illustrate an exemplary structure of a connector assembly according to the second embodiment.
- FIG. 5A is a perspective view of a receptacle connector 300 and a plug connector 400 .
- Right part of FIG. 5A depicts the receptacle connector 300 including a receptacle housing 310 that is illustrated as being transparent.
- the receptacle connector 300 includes the receptacle housing 310 , receptacle contacts 330 , and metal fittings 340 .
- the receptacle housing 310 has a shape like a box with an open top and an open front in a manner similar to the first embodiment.
- the receptacle housing 310 includes a bottom surface 311 and walls extending upward from three sides of the bottom surface 311 .
- the receptacle housing 310 further includes receiving portions 314 arranged on the side walls 312 at the back of the receptacle housing 310 such that each receiving portion 314 inwardly projects from the side wall 312 and horizontally extends along each of the side walls 312 at a predetermined height above the bottom surface 311 .
- the metal fitting 340 and the receiving portion 314 have a space therebetween in a horizontal direction along the side wall 312 of the receptacle housing 310 to receive a second engaging portion 430 described later.
- the receptacle contacts 330 are arranged at the back of the receptacle housing 310 such that the receptacle contacts 330 rise upwardly from the bottom surface 311 of the receptacle housing 310 .
- Lower part of each receptacle contact 330 projects from the outer surface of the rear wall, indicated at 313 , of the receptacle housing 310 and is joined to a circuit pattern of a printed circuit board 30 by soldering in a manner similar to the first embodiment.
- the metal fitting 340 looks like a U-shape turned sideways when viewed from the side.
- the metal fitting 340 is insert-molded within the front part of the side wall 312 and bottom surface 311 of the receptacle housing 310 .
- the metal fitting 340 includes a body portion 341 , a retaining portion 342 and a beam portion 343 .
- the body portion 341 projects inwardly from the side wall 312 of the receptacle housing 110 and extends upwardly from a lower part of each of the side walls 312 of the receptacle housing 310 to an upper part of each of the side walls 312 of the receptacle housing 310 .
- the retaining portion 342 is formed at a lower part of the body portion 341 and extends horizontally from the body portion 341 to be exposed on the outside of the receptacle housing 310 .
- the retaining portion 342 projects outward from each of the side walls 312 of the receptacle housing 310 .
- the retaining portion 342 is secured to the printed circuit board 30 by soldering.
- the metal fitting 340 includes a beam portion 343 , serving as upper part of the body portion 341 thereof, projecting inwardly from the side wall 312 of the receptacle housing 310 and extending horizontally from the body portion 341 in a direction of the open front of the receptacle housing by a predetermined distance along each of the side walls 312 of the receptacle housing 310 at a predetermined height above the bottom surface 311 of the receptacle housing 310 .
- the beam portion 343 includes a horizontal lock 344 that projects downwardly from the lower surface of the extending end of the beam portion 343 .
- the metal fitting 340 and the receiving portion 314 have a space therebetween in a horizontal direction.
- the plug connector 400 includes a plug housing 410 , cables 440 , and plug contacts (not illustrated).
- the plug housing 410 has a front surface 415 , left and right side-surfaces 411 , a rear surface 413 , a top surface 412 and a bottom surface 414 .
- One end of each cable 440 is connected to the corresponding plug contact in the plug housing 410 and the other end thereof extends from the front surface 415 of the plug housing 410 and is connected to, for example, a circuit module (not illustrated) in a manner similar to the first embodiment.
- the plug housing 410 further includes a first engaging portion 420 and a second engaging portion 430 arranged on each side surface 411 thereof such that the first and second portions protrude from the side surface 411 .
- the first engaging portion 420 and the second engaging portion 430 are arranged in a horizontal direction along the side-surfaces 411 of the plug housing 410 .
- the first engaging portion 420 and the second engaging portion 430 have a space therebetween in a horizontal direction along the side-wall 411 of the plug housing 410 to receive the metal fitting 340 .
- the first engaging portion 420 and the second engaging portion 430 are arranged at a predetermined level below the top surface of the plug housing 410 such that the bottom surfaces of the first and second portions are included in the bottom surface 414 of the plug housing 410 .
- first engaging portion 420 When the first engaging portion 420 is viewed from the side, a portion, corresponding to the upper side, of the first engaging portion 420 has a protrusion that serves as a horizontal-lock receiving portion 421 .
- the first engaging portion 420 and the second engaging portion 430 are provided on each of the left and right side surfaces 411 .
- the plug housing 410 includes the top surface 412 which is provided with a tape 450 for withdrawing the plug connector 400 from the receptacle connector 300 .
- the plug connector 400 has slits (not illustrated) arranged on the rear surface 413 and the bottom surface 414 thereof in a manner similar to the first embodiment.
- FIGS. 5B and 5C depict a mated condition of the plug connector 400 and the receptacle connector 300 .
- the receptacle housing 310 is illustrated as being transparent.
- each first engaging portion 420 of the plug connector 400 is received between the lower surface of the beam portion 343 of the corresponding metal fitting 340 and the bottom surface 311 of the receptacle housing 310 .
- Each second engaging portion 430 is inserted into a space formed between the lower surface of the corresponding receiving portion 314 of the receptacle housing 310 and the bottom surface 311 of the receptacle housing 310 .
- each first engaging portion 420 is locked by the first engaging portions 420 and the second engaging portions 430 .
- the horizontal-lock receiving portion 421 of each first engaging portion 420 is fitted between the horizontal lock 344 and the body portion 341 of the metal fitting 340 , thus restricting the horizontal movement of the plug connector 400 .
- FIGS. 6A to 6C A method of mating the plug connector 400 to the receptacle connector 300 is described with reference to FIGS. 6A to 6C .
- the receptacle housing 310 is illustrated as being transparent so that the mating or unmating of the receptacle connector 300 to or from the plug connector 400 is readily seen.
- the plug connector 400 is positioned above the receptacle connector 300 such that the surface of the plug connector 400 from which the cables 440 extend faces in the forward direction of the receptacle connector 300 (i.e., the left in FIG. 6A ) and each second engaging portion 430 of the plug connector 400 is positioned just above a space between the metal fitting 340 and the receiving portion 314 of the receptacle housing 310 .
- the plug connector 400 is moved downwardly until the lower surface thereof contacts the bottom surface 311 of the receptacle housing 310 (see FIG. 6A ).
- the plug connector 400 is slit to the rear wall 313 of the receptacle housing 310 (i.e., the right in FIG. 6B ).
- This sliding of the plug connector 400 allows each first engaging portion 420 to enter between the beam portion 343 of the corresponding metal fitting 340 and the bottom surface 311 of the receptacle housing 310 and allows each second engaging portion 430 to enter between the corresponding receiving portion 314 of the receptacle housing 310 and the bottom surface 311 .
- This sliding is stopped when the first engaging portion 420 abuts against the body portion 341 of the corresponding metal fitting 340 .
- the insertion of the plug connector 400 into the receptacle connector 300 is completed (see FIG. 6C ).
- each first engaging portion 420 is fitted between the horizontal lock 344 and the body portion 341 of the corresponding metal fitting 340 .
- the horizontal movement of the plug connector 400 is restricted.
- the upward movement of the plug connector 400 is restricted because each first engaging portion 420 is locked by the beam portion 343 of the corresponding metal fitting 340 and each second engaging portion 430 is locked by the corresponding receiving portion 314 of the receptacle housing 310 .
- Withdrawing the plug connector 400 from the receptacle connector 300 is the reverse of operation in FIGS. 6A to 6C .
- the plug connector 400 is slid to the left and is lifted and is then withdrawn.
- the tape 450 for withdrawing is picked up with a tool, such as tweezers, and the plug connector 400 is withdrawn.
Abstract
A connector assembly includes a plug connector including a plug housing and an engaging portion that outwardly protrudes from each of side-surfaces of the plug housing, and a receptacle connector including a receptacle housing and a metal fitting that is formed at each of side walls of the receptacle housing, the metal fitting including a retaining portion that is formed at a lower part of the metal fitting and is exposed at a lower part of each of the side walls, and a beam portion that is formed at an upper part of the metal fitting and inwardly projects from each of the side walls of the receptacle housing at a height above a bottom surface of the receptacle housing, the beam portion forming a space with the bottom surface of the receptacle housing to receive the engaging portion of the plug connector.
Description
- This application is based upon and claims the benefit of priority of the prior Japanese Patent Application No. 2010-135671, filed on Jun. 15, 2010, the entire contents of which are incorporated herein by reference.
- The embodiments discussed herein are related to a connector assembly.
- Right angle connector assemblies are widely used as components satisfying demands for reduction in thickness (profile) of mobile devices and the like. A typical connector assembly includes a receptacle connector fixed to a printed circuit board and a plug connector received in the receptacle connector. The right angle connector assemblies are broadly divided into two types depending on the direction of insertion or removal of the plug connector to or from the receptacle connector. One of the two types is a horizontal insertion/removal type in which the plug connector is horizontally inserted into or removed from the receptacle connector. The other type is a vertical insertion/removal type (including insertion/removal in the direction which is not strictly vertical but from above or upward) in which the plug connector is vertically inserted into or removed from the receptacle connector. In terms of the workability during insertion or removal of the plug connector to or from the receptacle connector fixed to the printed circuit board, the vertical insertion/removal type may be more advantageous than the other one. The reason is as follows. Assembly is performed while the plug connector is generally connected to a cable. In the horizontal insertion/removal type, the cable connected to the plug connector horizontally extends therefrom. Accordingly, the plug connector has to be carefully inserted into or removed from the receptacle connector so that the cable does not contact other components on the printed circuit board. The vertical insertion/removal type is free from such care.
- An exemplary structure of a connector assembly of the vertical insertion/removal type is described with reference to
FIGS. 7A to 7C .FIG. 7A is a perspective view of areceptacle connector 10 and aplug connector 20. Thereceptacle connector 10 includes areceptacle housing 11,receptacle contacts 13 arranged at the back (relative to the left side of the figure indicating “front”) of thereceptacle housing 11, andmetal fittings 14 arranged in front ends of both side walls of thereceptacle housing 11, the metal fittings being secured to the printed circuit board. Thereceptacle connector 10 further includesprojections 12, arranged in upper parts of both the side walls, for preventing removal of theplug connector 20. - The
plug connector 20 includes aplug housing 21 and plug contacts (not illustrated) arranged in theplug housing 21, the plug contacts being connected tocables 23. Theplug connector 20 hasprojection receiving portions 22 in upper parts of both side walls of theplug housing 21, theprojection receiving portions 22 being engaged with theprojections 12 of thereceptacle housing 11. -
FIG. 7B illustrates the connector assembly after insertion of theplug connector 20 into thereceptacle connector 10 from above. In such a state, the plug contacts (not illustrated) mate with thereceptacle contacts 13 to achieve electrical connection. Theprojections 12 of thereceptacle housing 11 engage theprojection receiving portions 22 of theplug connector 20, thus preventing upward removal of theplug connector 20. -
FIG. 7C is a side view of the connector assembly ofFIG. 7B . The metal fitting 14 projecting from thereceptacle housing 11 is secured to a printedcircuit board 30 by soldering. Thereceptacle contact 13 projecting from the rear wall of thereceptacle housing 11 is connected to a circuit pattern of the printedcircuit board 30 by soldering. - As a structure for preventing removal of a plug connector from a receptacle connector, there has known a structure in which fastening flanges horizontally arranged on the outer surfaces of both side walls of a plug housing are fitted onto the lower surfaces of fastening hooks horizontally arranged on the inner surfaces of side walls of a receptacle housing to fasten the plug connector to the receptacle connector so that upward removal is prevented. Japanese Laid-open Patent Publication No. 9-259992 is an example of related art.
- As described above, the right angle connector assemblies of the vertical insertion/removal type for mounting on a printed circuit board are widely used because such a connector assembly allows the profile of a device including the connector assembly to be reduced and the workability is excellent. The connector assemblies have a lock mechanism in which projections are arranged on outer walls of a plug housing, receiving portions are arranged on inner walls of a receptacle housing, and the projections engage the receiving portions to prevent removal of the plug connector even when an upward force acts on the connector assembly.
- Generally, it is rare that connectors constituting a connector assembly mounted on a printed circuit board are unmated from each other after the completion of assembly of a product including the connector assembly. In some cases, however, one connector is inserted into or removed from the other connector in order to undergo various tests before the assembly of the product. In such a case, if the above-described lock mechanism includes molded components of the housings of the connectors, a lock projection or receiving portion is worn away owing to the insertion and removal. Disadvantageously, the lock loosens and the connector may be easily removed from the other one.
- When the outer dimensions of a connector are small (for example, 4.5×4.5×1.5 mm), it is difficult to unmate a plug connector from a receptacle connector while holding the housing of the plug connector. Therefore, the plug connector is unmated from the receptacle connector while a cable is raised. In this case, the projection or receiving portion is significantly damaged (worn away). The reliability of connection of the damaged connector assembly is degraded. After shipment of a product including the damaged connector assembly, a trouble may be caused because the product has a loose contact.
- According to an aspect of the invention, a connector assembly includes a plug connector including a plug housing and an engaging portion that outwardly protrudes from each of opposite first and second side-surfaces of the plug housing, and a receptacle connector that is mated with the plug connector, the receptacle connector including a receptacle housing that accommodates the plug connector, and a metal fitting that is formed at each of opposite first and second side walls of the receptacle housing, the metal fitting including a retaining portion that is formed at a lower part of the metal fitting and is exposed at a lower part of each of the first and second side walls of the receptacle housing, and a beam portion that is formed at an upper part of the metal fitting and inwardly projects from each of the first and second side walls of the receptacle housing at a height above a bottom surface of the receptacle housing, the beam portion forming a space with the bottom surface of the receptacle housing to receive the engaging portion of the plug connector.
- The object and advantages of the invention will be realized and attained by means of the elements and combinations particularly pointed out in the claims. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, as claimed.
-
FIGS. 1A to 1C illustrate a connector assembly according to a first embodiment. -
FIG. 2 is a perspective view of the connector assembly according to the first embodiment when viewed from the rear. -
FIGS. 3A to 3D illustrate a method of inserting a plug connector into a receptacle connector according to the first embodiment. -
FIGS. 4A to 4D illustrate a method of withdrawing the plug connector into a receptacle connector according to the first embodiment. -
FIGS. 5A to 5C illustrate a connector assembly according to a second embodiment. -
FIGS. 6A to 6C illustrate a method of inserting a plug connector into a receptacle connector according to the second embodiment. -
FIGS. 7A to 7C illustrate an exemplary structure of a connector assembly of the vertical insertion/removal type according to a related art. - A connector assembly according to a first embodiment is described with reference to
FIGS. 1A to 4D . The connector assembly according to the first embodiment includes receptacle contacts of the right angle type and a plug connector of a vertical insertion/removal type. The plug connector is inserted from above into a receptacle connector and is mated thereto. As for mounting onto a printed circuit board, surface mounting is performed. -
FIGS. 1A to 1C illustrate an exemplary structure of the connector assembly according to this embodiment in a manner similar toFIGS. 7A to 7C described above. The structure of the connector assembly is described mainly usingFIGS. 1A to 1C . The structure is described with reference toFIG. 2 .FIG. 2 is a perspective view of the connector assembly ofFIG. 1 when viewed from the rear. -
FIG. 1A is a perspective view of areceptacle connector 100 and aplug connector 200. Right part ofFIG. 1A illustrates thereceptacle connector 100 including areceptacle housing 110 that is illustrated as being transparent. - Referring to
FIG. 1A , thereceptacle connector 100 includes thereceptacle housing 110, the receptacle contacts, indicated at 130, andmetal fittings 140. Thereceptacle housing 110 has a shape like a box with an open top and an open front. Thereceptacle housing 110 includes abottom surface 111 and walls extending upward from three sides of thebottom surface 111. A top opening of thereceptacle housing 110 is for insertion and removal of theplug connector 200. A front opening thereof is for extension ofcables 240 connected to theplug connector 200 upon insertion of theplug connector 200. - The
receptacle contacts 130 are arranged at the back of thereceptacle housing 110 such that thereceptacle contacts 130 rise upward and are electrically connected to plug contacts (not illustrated) in theplug connector 200 inserted from above. Lower part of eachreceptacle contact 130 projects from the outer surface of the rear wall, indicated at 113, of thereceptacle housing 110 and is joined to a circuit pattern of a printedcircuit board 30 by soldering.FIG. 2 illustrates thereceptacle contacts 130 projecting from the outer surface of therear wall 113 of thereceptacle housing 110.FIG. 1A illustrates the tworeceptacle contacts 130. The number of receptacle contacts is not limited to two.More receptacle contacts 130 may be arranged. - A
metal fitting 140 is inverted Z-shaped as illustrated in an enlarged view in right part ofFIG. 1A . Themetal fitting 140 is insert-molded in front parts each of both side walls, indicated at 112, of thereceptacle housing 110. Themetal fitting 140 includes abody portion 141, a retainingportion 142, and abeam portion 143. Thebody portion 141 projects inwardly from theside wall 112 of thereceptacle housing 110 and extends upwardly from a lower part of each of theside walls 112 of thereceptacle housing 110 to an upper part of each of theside walls 112 of thereceptacle housing 110. The retainingportion 142 is formed at a lower part of thebody portion 141 and extends horizontally from thebody portion 141 to be exposed on the outside of thereceptacle housing 110. The retainingportion 142 forwardly projects from thereceptacle housing 110. The retainingportion 142 is secured to a printedcircuit board 30 by soldering. Themetal fitting 140 includes abeam portion 143, serving as upper part of thebody portion 141 thereof, projecting inwardly from theside wall 112 of thereceptacle housing 110 and extending horizontally from thebody portion 141 in a direction of arear wall 113 of thereceptacle housing 110 by a predetermined distance along each of theside walls 112 of thereceptacle housing 110 at a predetermined height above abottom surface 111 of thereceptacle housing 110. Thebeam portion 143 functions as a lock against upward movement of theplug connector 200. Thebeam portion 143 is described in detail later.FIG. 2 illustrates thebeam portion 143 which projects inwardly from thereceptacle housing 110 and horizontally extends along theside wall 112. - In this embodiment, the
metal fittings 140 are insert-molded in thereceptacle housing 110. A slit may be vertically formed in eachside wall 112 and themetal fitting 140 may be pressed into the slit. The retainingportions 142 project from thefront surface 114 of thereceptacle housing 110. The retainingportions 142 may be exposed at thefront surface 114 orbottom surface 111 without projecting therefrom and the exposed surfaces of the retainingportions 142 may be joined to the printedcircuit board 30 by soldering. - The
plug connector 200 includes aplug housing 210, thecables 240, and the plug contacts (not illustrated). Theplug housing 210 has afront surface 216, left and right side-surfaces 211, arear surface 213, atop surface 212 and abottom surface 215. One end of eachcable 240 is connected to the plug contact and the other end thereof extends from thefront surface 216 of theplug housing 210 and is connected to, for example, a circuit module. - The
plug housing 210 includes raisedportions 221 protruding from the respective side-surfaces 211 thereof. The top surface of each of the raisedportions 221 is included in thetop surface 212 of theplug housing 210. The raisedportions 221 are formed the side-surfaces 211 adjacent to therear surface 213 of theplug housing 210. A lower part of each of the raisedportions 221 extends in the direction of thefront surface 216 of theplug housing 210 to provide anengaging portion 220. The engagingportion 220 has a predetermined height from thebottom surface 215 of theplug housing 210. The engagingportion 220 is inserted into a space formed between themetal fitting 140 and thebottom surface 111 of thereceptacle housing 110. Namely thebeam portion 143 forms a recess with thebody portion 141 and thebottom surface 111 of thereceptacle housing 110. The engagingportion 220 is described in detail later. - The
plug housing 210 includes thetop surface 212 having acatch 230 for withdrawing theplug connector 200 from thereceptacle connector 100. Theplug housing 210 further includes arear surface 213 that is formed in a curved surface (refer toFIG. 2 ). Theplug housing 210 has twoslits 214 extending from therear surface 213 thereof to thebottom surface 215 thereof. The placement of the curved surface prevents the lower part of therear surface 213 of theplug connector 200 from hitting therear wall 113 of thereceptacle housing 110 and being caught by therear wall 113 upon insertion of theplug connector 200 into thereceptacle connector 100 and upon removal of theplug connector 200 from thereceptacle connector 100. Theslits 214 are configured to guide thereceptacle contacts 130 into theplug housing 210 and mate the plug contacts (not illustrated) to thereceptacle contacts 130 when theplug connector 200 is inserted into thereceptacle connector 100. -
FIGS. 1B and 1C depict a mated condition of theplug connector 200 and thereceptacle connector 100. In the figures, thereceptacle housing 110 is illustrated as being transparent. As illustrated inFIGS. 1B and 1C , each engagingportion 220 of theplug connector 200 is received between the lower surface of thebeam portion 143 of the corresponding metal fitting 140 and thebottom surface 111 of thereceptacle housing 110. Accordingly, even if an upward force acts on theplug connector 200 in the mated condition, theplug connector 200 is locked by thebeam portion 143. - In the mated condition of the
plug connector 200 and thereceptacle connector 100, there is no gap between therear surface 213 of theplug connector 200 and therear wall 113 of thereceptacle housing 110 and the front surface of eachengaging portion 220 abuts against the rear surface of thebody portion 141 of the correspondingmetal fitting 140. Consequently, the horizontal movement of theplug connector 200 is also restricted. - A method of mating the
plug connector 200 to thereceptacle connector 100 in this embodiment is described with reference toFIGS. 3A to 3D and a method of withdrawing theplug connector 200 from thereceptacle connector 100 is described with reference toFIGS. 4A to 4D . InFIGS. 3A to 4D , thereceptacle housing 110 is illustrated as being transparent so that mating theplug connector 200 to thereceptacle connector 100 and unmating theplug connector 200 from thereceptacle connector 100 can be seen. - The method of mating the
plug connector 200 to thereceptacle connector 100 is first described. Referring toFIG. 3A , theplug connector 200 is positioned above thereceptacle connector 100 mounted on the printedcircuit board 30. At this time, the direction in which thecables 240 connected to theplug connector 200 extend therefrom is aligned with the forward direction of the receptacle connector 100 (i.e., the left inFIG. 3A ). - Above the
receptacle connector 100, the front part, from which thecables 240 extend, of theplug connector 200 is tilted downward and eachengaging portion 220 of theplug connector 200 is diagonally inserted in an inclined state between the lower surface of thebeam portion 143 of themetal fitting 140 and thebottom surface 111 of the receptacle housing 110 (seeFIG. 3B ). - Subsequently, the rear part of the
top surface 212 of theplug connector 200 is downwardly pressed such that theplug connector 200 is pressed into thereceptacle housing 110 along therear wall 113. Pressing theplug connector 200 allows thereceptacle contacts 130 in thereceptacle housing 110 to enter theplug housing 210 through theslits 214 of theplug housing 210, so that thereceptacle contacts 130 mate with the plug contacts (not illustrated). When theplug connector 200 is pressed into thereceptacle housing 110 until theplug connector 200 is horizontally received therein, the mating of the connectors (i.e., theplug connector 200 and the receptacle connector 100) is completed. - The method of withdrawing the
plug connector 200 from thereceptacle connector 100 is described.FIG. 4A illustrates a state in which while theplug connector 200 is mated with thereceptacle connector 100, one end of apuller 250 is placed in thecatch 230 on thetop surface 212 of theplug connector 200. Thepuller 250 is a plate-shaped tool having a tapered end and a width to fit within a recess, serving as thecatch 230. - In the state of
FIG. 4A , thepuller 250 is raised while being caught by thecatch 230. Consequently, therear surface 213 of theplug housing 210 is pulled upward along therear wall 113 of the receptacle housing 110 (seeFIG. 4B ) - When the
rear surface 213 of theplug housing 210 is pulled up to a predetermined level from the receptacle housing 110 (for example, a level of approximately two thirds of the height of the plug housing 210), thepuller 250 is pressed upward to the right, so that each engagingportion 220 is disengaged from the metal fitting 140 (seeFIG. 4C ). - After confirmation of the disengagement of the engaging
portion 220 from themetal fitting 140, theplug housing 210 is lifted, so that the withdrawing is completed (seeFIG. 4D ). - In the first embodiment, the
receptacle housing 110 and theplug housing 210 are of, for example, liquid crystal polymer (LCP) and themetal fittings 140 are of, for example, stainless used steel (SUS) or copper alloy. The outer dimensions of thereceptacle connector 100 are 4.5 mm (width)×4.5 mm (depth)×1.5 mm (height). - In the above-described first embodiment, the engaging
portion 220 is disposed on each of the side surfaces 211 of theplug housing 210 and the engagingportion 220 is inserted between themetal fitting 140 and thebottom surface 111 of thereceptacle housing 110. According to a second embodiment, two engaging portions (i.e., a first engaging portion and a second engaging portion) are arranged on each side wall of theplug housing 210 and horizontally extend along the side walls. The first engaging portion is inserted between a metal fitting and the bottom surface of the receptacle housing and the second engaging portion is inserted between a receiving portion of the receptacle housing and the bottom surface of the receptacle housing. The second embodiment is described with reference toFIGS. 5A to 6C . -
FIGS. 5A to 5C illustrate an exemplary structure of a connector assembly according to the second embodiment.FIG. 5A is a perspective view of areceptacle connector 300 and aplug connector 400. Right part ofFIG. 5A depicts thereceptacle connector 300 including areceptacle housing 310 that is illustrated as being transparent. - The
receptacle connector 300 includes thereceptacle housing 310,receptacle contacts 330, andmetal fittings 340. Thereceptacle housing 310 has a shape like a box with an open top and an open front in a manner similar to the first embodiment. Thereceptacle housing 310 includes abottom surface 311 and walls extending upward from three sides of thebottom surface 311. Thereceptacle housing 310 further includes receivingportions 314 arranged on the side walls 312 at the back of thereceptacle housing 310 such that each receivingportion 314 inwardly projects from the side wall 312 and horizontally extends along each of the side walls 312 at a predetermined height above thebottom surface 311. Themetal fitting 340 and the receivingportion 314 have a space therebetween in a horizontal direction along the side wall 312 of thereceptacle housing 310 to receive a secondengaging portion 430 described later. - The
receptacle contacts 330 are arranged at the back of thereceptacle housing 310 such that thereceptacle contacts 330 rise upwardly from thebottom surface 311 of thereceptacle housing 310. Lower part of eachreceptacle contact 330 projects from the outer surface of the rear wall, indicated at 313, of thereceptacle housing 310 and is joined to a circuit pattern of a printedcircuit board 30 by soldering in a manner similar to the first embodiment. - The
metal fitting 340 looks like a U-shape turned sideways when viewed from the side. Themetal fitting 340 is insert-molded within the front part of the side wall 312 andbottom surface 311 of thereceptacle housing 310. Themetal fitting 340 includes abody portion 341, a retainingportion 342 and abeam portion 343. Thebody portion 341 projects inwardly from the side wall 312 of thereceptacle housing 110 and extends upwardly from a lower part of each of the side walls 312 of thereceptacle housing 310 to an upper part of each of the side walls 312 of thereceptacle housing 310. The retainingportion 342 is formed at a lower part of thebody portion 341 and extends horizontally from thebody portion 341 to be exposed on the outside of thereceptacle housing 310. The retainingportion 342 projects outward from each of the side walls 312 of thereceptacle housing 310. The retainingportion 342 is secured to the printedcircuit board 30 by soldering. Themetal fitting 340 includes abeam portion 343, serving as upper part of thebody portion 341 thereof, projecting inwardly from the side wall 312 of thereceptacle housing 310 and extending horizontally from thebody portion 341 in a direction of the open front of the receptacle housing by a predetermined distance along each of the side walls 312 of thereceptacle housing 310 at a predetermined height above thebottom surface 311 of thereceptacle housing 310. Thebeam portion 343 includes ahorizontal lock 344 that projects downwardly from the lower surface of the extending end of thebeam portion 343. Themetal fitting 340 and the receivingportion 314 have a space therebetween in a horizontal direction. - The
plug connector 400 includes aplug housing 410,cables 440, and plug contacts (not illustrated). Theplug housing 410 has afront surface 415, left and right side-surfaces 411, arear surface 413, atop surface 412 and a bottom surface 414. One end of eachcable 440 is connected to the corresponding plug contact in theplug housing 410 and the other end thereof extends from thefront surface 415 of theplug housing 410 and is connected to, for example, a circuit module (not illustrated) in a manner similar to the first embodiment. - The
plug housing 410 further includes a firstengaging portion 420 and a secondengaging portion 430 arranged on eachside surface 411 thereof such that the first and second portions protrude from theside surface 411. The firstengaging portion 420 and the secondengaging portion 430 are arranged in a horizontal direction along the side-surfaces 411 of theplug housing 410. The firstengaging portion 420 and the secondengaging portion 430 have a space therebetween in a horizontal direction along the side-wall 411 of theplug housing 410 to receive themetal fitting 340. The firstengaging portion 420 and the secondengaging portion 430 are arranged at a predetermined level below the top surface of theplug housing 410 such that the bottom surfaces of the first and second portions are included in the bottom surface 414 of theplug housing 410. When the first engagingportion 420 is viewed from the side, a portion, corresponding to the upper side, of the first engagingportion 420 has a protrusion that serves as a horizontal-lock receiving portion 421. The firstengaging portion 420 and the secondengaging portion 430 are provided on each of the left and right side surfaces 411. - The
plug housing 410 includes thetop surface 412 which is provided with atape 450 for withdrawing theplug connector 400 from thereceptacle connector 300. Theplug connector 400 has slits (not illustrated) arranged on therear surface 413 and the bottom surface 414 thereof in a manner similar to the first embodiment. -
FIGS. 5B and 5C depict a mated condition of theplug connector 400 and thereceptacle connector 300. In the figures, thereceptacle housing 310 is illustrated as being transparent. As illustrated inFIGS. 5B and 5C , each first engagingportion 420 of theplug connector 400 is received between the lower surface of thebeam portion 343 of the corresponding metal fitting 340 and thebottom surface 311 of thereceptacle housing 310. Each secondengaging portion 430 is inserted into a space formed between the lower surface of the corresponding receivingportion 314 of thereceptacle housing 310 and thebottom surface 311 of thereceptacle housing 310. Accordingly, even if an upward force acts on theplug connector 400 in the mated condition, theplug connector 400 is locked by the first engagingportions 420 and the secondengaging portions 430. The horizontal-lock receiving portion 421 of each first engagingportion 420 is fitted between thehorizontal lock 344 and thebody portion 341 of themetal fitting 340, thus restricting the horizontal movement of theplug connector 400. - A method of mating the
plug connector 400 to thereceptacle connector 300 is described with reference toFIGS. 6A to 6C . InFIGS. 6A to 6C , thereceptacle housing 310 is illustrated as being transparent so that the mating or unmating of thereceptacle connector 300 to or from theplug connector 400 is readily seen. - First, the
plug connector 400 is positioned above thereceptacle connector 300 such that the surface of theplug connector 400 from which thecables 440 extend faces in the forward direction of the receptacle connector 300 (i.e., the left inFIG. 6A ) and each second engagingportion 430 of theplug connector 400 is positioned just above a space between themetal fitting 340 and the receivingportion 314 of thereceptacle housing 310. In this state, theplug connector 400 is moved downwardly until the lower surface thereof contacts thebottom surface 311 of the receptacle housing 310 (seeFIG. 6A ). - Subsequently, the
plug connector 400 is slit to therear wall 313 of the receptacle housing 310 (i.e., the right inFIG. 6B ). This sliding of theplug connector 400 allows each first engagingportion 420 to enter between thebeam portion 343 of the corresponding metal fitting 340 and thebottom surface 311 of thereceptacle housing 310 and allows each second engagingportion 430 to enter between the corresponding receivingportion 314 of thereceptacle housing 310 and thebottom surface 311. This sliding is stopped when the first engagingportion 420 abuts against thebody portion 341 of the correspondingmetal fitting 340. Thus, the insertion of theplug connector 400 into thereceptacle connector 300 is completed (seeFIG. 6C ). - At the completion of the insertion, the horizontal-
lock receiving portion 421 of each first engagingportion 420 is fitted between thehorizontal lock 344 and thebody portion 341 of the correspondingmetal fitting 340. In this state, the horizontal movement of theplug connector 400 is restricted. In addition, the upward movement of theplug connector 400 is restricted because each first engagingportion 420 is locked by thebeam portion 343 of the corresponding metal fitting 340 and each second engagingportion 430 is locked by the corresponding receivingportion 314 of thereceptacle housing 310. - Withdrawing the
plug connector 400 from thereceptacle connector 300 is the reverse of operation inFIGS. 6A to 6C . In other words, theplug connector 400 is slid to the left and is lifted and is then withdrawn. At this time, thetape 450 for withdrawing is picked up with a tool, such as tweezers, and theplug connector 400 is withdrawn. - All examples and conditional language recited herein are intended for pedagogical purposes to aid the reader in understanding the invention and the concepts contributed by the inventor to furthering the art, and are to be construed as being without limitation to such specifically recited examples and conditions, nor does the organization of such examples in the specification relate to a illustrating of the superiority and inferiority of the invention. Although the embodiment(s) of the present inventions have been described in detail, it should be understood that the various changes, substitutions, and alterations could be made hereto without departing from the spirit and scope of the invention.
Claims (8)
1. A connector assembly comprising:
a plug connector including
a plug housing, and
an engaging portion that outwardly protrudes from each of opposite first and second side-surfaces of the plug housing; and
a receptacle connector that is mated with the plug connector, the receptacle connector including
a receptacle housing that accommodates the plug connector, and
a metal fitting that is formed at each of opposite first and second side walls of the receptacle housing, the metal fitting including
a retaining portion that is formed at a lower part of the metal fitting and is exposed at a lower part of each of the first and second side walls of the receptacle housing, and
a beam portion that is formed at an upper part of the metal fitting and inwardly projects from each of the first and second side walls of the receptacle housing at a height above a bottom surface of the receptacle housing, the beam portion forming a space with the bottom surface of the receptacle housing to receive the engaging portion of the plug connector.
2. The connector assembly according to claim 1 , wherein the plug housing of the plug connector includes one of a recess, a protrusion, and a tape member, provided on a top surface of the housing, for withdrawing the plug connector.
3. The connector assembly according to claim 1 , wherein the metal fitting is insert-molded or press-fitted in the receptacle housing.
4. The connector assembly according to claim 1 , wherein the plug housing has a front surface and a rear surface, and the rear surface of the plug housing is formed in a curved surface, the receptacle housing has an open top, an open front, and a rear wall, the metal fitting is located adjacent to the open front and includes a body portion that upwardly extends from a part of the retaining portion to a part of the beam portion and inwardly projects from each of the first and second side-walls of the receptacle housing, and the beam portion extends from the body portion along each of the first and second side walls of the receptacle housing in a direction of the rear wall of the receptacle housing.
5. The connector assembly according to claim 4 , wherein the engaging portion of the plug connector is engaged with metal fitting when the engaging portion is inserted into the space between the beam portion and the bottom surface of the receptacle housing in an inclined state from above and a rear part of the top surface of the plug connector is downwardly pressed such that the plug connector is pressed into the receptacle housing along the rear wall of the receptacle housing.
6. The connector assembly according to claim 1 , wherein the engaging portion of the plug connector includes a first engaging portion having a horizontal lock receiving portion that is a protrusion formed in an upper part thereof and a second engaging portion, and the first engaging portion and the second engaging portion are arranged in a horizontal direction along each of the first and second side-surfaces of the plug housing, wherein the receptacle housing further includes a receiving portion that inwardly projects from each of the first and second side walls of the receptacle housing, the metal fitting and the receiving portion are arranged in a horizontal direction along each of the first and second side walls of the receptacle housing, and the receiving portion forms a space with the bottom surface of the receptacle housing to receive the second engaging portion, and the beam portion has a horizontal lock that projects downwardly from a lower surface of an end of the beam portion and is engaged with the horizontal lock receiving portion of the first engaging portion upon insertion of the plug connector into the receptacle connector.
7. The connector assembly according to claim 6 , wherein the receptacle housing has an open top and an open front and a rear wall, the metal fitting is located adjacent to the open front and includes a body portion that upwardly extends from a part of the retaining portion to a part of the beam portion and inwardly projects from each of the first and second side-walls of the receptacle housing, the beam portion extends from the body portion along each of the first and second side walls of the receptacle housing in a direction of the open front of the receptacle housing, and the receiving portion is located adjacent to the rear wall.
8. The connector assembly according to claim 7 , wherein the first engaging portion of the plug connector is engaged with the metal fitting and the second engaging portion is engaged with the receiving portion when the second engaging portion of the plug connector is inserted into a space between the metal fitting and the receiving portion from above the receptacle connector and is slit to the rear wall of the second housing.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010-135671 | 2010-06-15 | ||
JP2010135671A JP2012003874A (en) | 2010-06-15 | 2010-06-15 | Connector, receptacle connector and plug connector |
Publications (1)
Publication Number | Publication Date |
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US20110306229A1 true US20110306229A1 (en) | 2011-12-15 |
Family
ID=45096582
Family Applications (1)
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US13/158,831 Abandoned US20110306229A1 (en) | 2010-06-15 | 2011-06-13 | Connector assembly |
Country Status (3)
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US (1) | US20110306229A1 (en) |
JP (1) | JP2012003874A (en) |
CN (1) | CN102299453A (en) |
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US20210305751A1 (en) * | 2020-03-26 | 2021-09-30 | Molex, Llc | Electrical connection device and terminal |
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Also Published As
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---|---|
JP2012003874A (en) | 2012-01-05 |
CN102299453A (en) | 2011-12-28 |
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